SOLUTION: 5x+8=3x-4= I think I got the right answer on the test. I wrote 6 as the answer but I got it 1/2 wrong because I don't know how to check my answer. I was wondering if you could
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Question 125973: 5x+8=3x-4= I think I got the right answer on the test. I wrote 6 as the answer but I got it 1/2 wrong because I don't know how to check my answer. I was wondering if you could help me figure out how to check my answer.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation
Subtract 8 from both sides
Subtract 3x from both sides
Combine like terms on the left side
Combine like terms on the right side
Divide both sides by 2 to isolate x
Divide
--------------------------------------------------------------
Answer:
So our answer is
---------------
Check:
Start with the given equation
Plug in . In other words, replace each with
Multiply
Combine like terms. Since the two sides of the equation are equal, this verifies our answer.
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